Rejection of Israel?

Zionists say: but the rejection of a Jewish state is anti-Semitic because why one would single out in rejection this Jewish state? To that one says: 1) Oh, no. I also reject Christian and Islamic and Buddhist states as well. 2) but also one can maintain that one is not necessarily opposed to a Jewish state per se but is opposed to the particular Jewish state which was constructed atop an existing Palestinian homeland.  Maxine Robinson once explained his position this way, he said: I would not be opposed to a Jewish state on the moon, for example.